Automatic Registration of laser scanning data and colour images

Laser scanning is a new technique for three dimensional point measurements. Over the last decades the number of applications in which these measurements take place, has grown significantly. In every application the surveyors are looking for the same result, namely a three dimensional point cloud of the object of interest. The purpose of this...

Laser scanning modelling of a Cessna citation: For Computational Fluid Dynamics (CFD) Studies

In Aerospace Engineering the field of Computational Flow Dynamics (CFD) studies the aerodynamic behaviour of aircrafts. What is currently being used to perform CFD simulations are Computer Aided Design (CAD) models of the airplanes, which are usually low-detail industrial design models. Research of new methods for improving the results of the...

Using 3D terrestrial laser scanning technique to determine volume changes of a cobble beach

The use of cobbles as a dynamic revetment is a recent development in coastal protection. Cobbles are placed along the beach and they form a dynamic equilibrium with the waves, thus dissipating the energies from the wave and protecting the soft, native material from eroding. In order to optimize the design and increase the durability of this...

Evaluation of close range photogrammetric support for Pavescan

Pavescan is a low cost mobile system for road modelling survey. Because of the absence of navigation sensors it has several practical drawbacks compared to most of the other mobile mapping systems, but those sensors are very expensive and do not fulfil most of the accuracy requirements. Pavescan will be more attractive if some of the practical...

Grain Size Distribution Analysis from 3D Laser Scan Data

The goal of this project was to see if information on the grain size distribution of a patch of cobbles could be obtained from the digital terrain model constructed from a laser scan of the cobble surface. The grain size distribution was to be extracted from the laser scans by the use of semivariograms. This was inspired by the research done by...

In-situ block size estimation using 3D terrestrial data

For the construction of breakwaters large amounts of armourstone which are produced in dedicated quarries are needed. The better the in-situ block size distribution (IBSD) of these quarries can be determined, the more accurately the quarry production can be predicted. Currently, the IBSD prediction is based on manually acquired scanline data....

Generating a full 3D Model of The Windmill (Molen de Roos)

Merging interior and exterior laser scanning point clouds of the historical windmill, completing the missing parts from airborne laser scanning data and trying different mesh generation methods for full 3D windmill model generation in order to be able to perform virtual visits in the future.

The Patching of Built Ornamental Heritage using Digital Fabrication

The purpose of this research is to explore the role of LIDAR Technology and Digital Fabrication techniques in the field of architectural conservation, particularly for the patching of ornamental heritage. The information is compiled in the form of a guide. Information gathered via the aid of experiments and subsequent observations is also...

Automatic Extraction of an IndoorGML Navigation Graph from an Indoor Point Cloud

Because of urbanisation, more than 50% of the global population now lives in cities, a number that is ever-increasing. This leads to a need for more dense and complex building constructions, driven by the fact that people are living increasingly close to one another. These structures are often so large that it becomes difficult to navigate in...

Accurate, Detailed and Automatic Tree Modelling from Point Clouds

Trees are of great significance throughout the world, both in urban scenes and in natural environments. Models of trees can be widely applied in various fields, for instance, landscape design, geo-simulation, environment modelling, and forestry inventories. Recently, laser scanning technology has been rapidly developed, making it possible to...

Innovation in Renovation: Optimizing interior insulation application workflow

In the times of growing attention towards renovation for energy efficiency in the built environment, the building stock particularly associated with heritage value deemed monumental or protected is currently exempted under the Dutch law to comply with the energy performance guidelines. <br/>Limitations with regards to protecting the aesthetics...

The Current State of the St. BavoChurch Tower: A Verification Study and Structural Analysis of the Wooden Tower of the St. Bavo Church in Haarlem,The Netherlands

The structural reliability of the wooden tower of the Grote of St. BavoChurch in Haarlem has been assessed with the regular methods. In addition to the regular methods, some modern technologies have been used in the structural analysis. The mechanical properties of the timber have been determined with longitudinal vibration tests and visual...